402SXV Micro Vickers Hardness Tester (Automatic Rotary Tower)Detailed product description：

1. Micro Vickers hardness tester is a new type of hardness tester that combines precision machinery and photoelectric computer software. It can be used for Vickers or Knoop hardness testing. By inputting the measured diagonal values into an integrated calculator, the hardness value can be calculated.
2. The micro Vickers hardness tester is suitable for testing metal materials, including small parts, thin plates, metal foils, high-quality wires, thin hardened layers, and electroplated layers. It can also be used to test non-metallic materials such as glass, jewelry, and ceramics that cannot be tested with other relatively large test forces. Especially, it can follow the structure of metals and test the internal hardness of materials such as induction hardening or carburizing.
3. Hardness testing is divided into two parts: the first part is to drive a diamond indenter with a known size of test force and press it into the surface of the tested material. The second part is for the user to measure the diagonal length of the indentation, input the measured data into the host, and the host calculates the corresponding Vickers or Knoop hardness value.
The difference between Vickers and Knoop hardness tests lies in the use of different indenters. The Vickers indenter is a pyramid shaped indenter with a square base, while the Nusselt indenter is a pyramid shaped indenter with a diamond base. In addition, the Vickers test requires measuring two diagonals, while the Knoop test only requires measuring one diagonal.

objective lens	10 x (observation)	40 x (measurement)
Side micro eyepiece	10×
Total magnification factor	100 x (observation)	400 x (measurement)
Maximum measurement range		200μm
resolution		0.015μm

2. Technical parameters
1. Vickers scale: HV0.01, HV0.025, HV0.05, HV0.1, HV0.2, HV0.3, HV0.5, HV1
2. Test force unit: gf, mN
3. Test force: (gf) 10 25 50 100 200 300 500 1000 (1K)
（mN） 98 245 490 980 1960 2940 4900 9800
Attention: This hardness tester can be equipped with 2k special weights (provided according to the contract) for Vickers hardness testing with a test force of 2000gf (2kgf).

4. Test force selection: Rotate the test force change handwheel, and display the selected test force on the screen
5. Loading control: automatic (loading/holding/unloading)
6. Load holding time: 5-99 seconds (increments of 1 second)
7. Test mode: HV/HK
8. Hardness value: manually measure indentation, automatically input measurement reading; Automatically calculate and display hardness values
9. Language: English
10. Optical system:
11. X-Y test bench
Size: 100 × 100 mm
Journey: 25 × 25 mm
Resolution: 0.01 mm
12. Test piece
Maximum height: 90 mm
Maximum depth: 120 mm (from the center)
13. Energy saving mode: automatically enters standby mode after 15 minutes of inactivity
14. LCD contrast: 32 levels adjustable
15. Light source: 12V/20W
16. Light source brightness: 16 levels adjustable
17. Loading motor: 3W, 100V AC, 4 rpm
18. Loading motor drive mode: contactless SSR
19. Power supply: 220V 50/60 Hz
20. Power consumption of the whole machine: ≤ 60W
21. Host size: 490 × 320 × 550 mm
22. Host weight: approximately 35 kg